Screwdriver bit



FIG. 1 is a perspective top view of the screwdriver bit showing my new design;

FIG. 2 is a perspective bottom view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side elevation view thereof; and

FIG. 8 is a right side elevation view thereof; and,

FIG. 9 is an illustrative perspective view thereof.

The broken lines shown in FIG. 9 are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a screwdriver bit, as shown and described. 